1) Students________ hit each other.  a) must b) don't have to c) mustn't  2) Usually a student _____use a computer to do exams. a) hasn't to b) doesn't have to c) don't have to  3) You ______ break school rules. a) mustn't b) must c) don't have to 4) You ______speak English in English lesson if you want to speak well. a) has to b) have to c) must 5) At our school, we ________ wear a uniform. a) doesn't have to b) don't have to c) mustn't  6) You ________ study hard to become a doctor. a) must b) mustn't c) have to 7) Usually, we ________ go to school on Monday.  a) has to b) have to c) don't have to

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